Document replaced. This document has been replaced by a standard (ST) in the DNV GL portfolio: DNVGL-ST-C All DNV GL service documents may be. Download DNV GL’s standard for Offshore concrete structures. Find the most up-to-date version of DNV-OS-C at Engineering

Author: Bashakar Gorn
Country: Guyana
Language: English (Spanish)
Genre: Politics
Published (Last): 6 June 2018
Pages: 32
PDF File Size: 2.99 Mb
ePub File Size: 10.35 Mb
ISBN: 399-4-58748-853-1
Downloads: 79568
Price: Free* [*Free Regsitration Required]
Uploader: Ferr

In the early days of the industry when concrete platforms and installations started to be used, DNV GL experts verified such structures in Norway. Despite the fact that a number of concrete platforms are still in operation, particularly in hostile marine environments worldwide, there has been little development activity since the s.

When it comes to designing offshore concrete structures, important effects that need to be considered are, for example, the concrete fatigue performance under water, effects of water pressure in pores and cracks and principles for watertightness. Dv the article online at: The area is well known for icebergs, which is why the operators have found concrete to be the most competitive solution. Another interesting and unique feature of the updated DNV-OS-C is the systematics it provides for the qualification of new and innovative materials intended for offshore use.

Home Downstream Special reports 27 October Creating a complete code 5c02 offshore concrete structures.

DNV MPQA Certification for PAGEL Offshore Grout Material

One of these materials is high-strength grout. The approach defined in C ensures quality by considering all the aspects, from production to application, which are critical to the final in-place material offshore.

Laboratory tests conducted by the material producer at an independent laboratory and witnessed by DNV GL are used to determine the fresh and hardened grout properties. The purpose of the Eurocodes is to provide a harmonised set of design and construction rules that are applicable throughout Europe. Concrete solutions are also being considered for dnc north and east of Russia and north of Norway, amongst others. Here are the instructions how to enable JavaScript in your web browser.


Edited by Katie Woodward. Please sign in or become a member for free. This changed in when Eurocodes were adopted throughout Europe, including in Norway. DNV GL believes that this type of certification scheme will facilitate the adoption of these materials by operators. This paper aims to show a refurbishment project of v502 off-shore wind turbine, combining its natural purpose of exploiting the wind resources in the windiest sea areas along the coasts of Italy Sardinia, Sicily, Abruzzo, Apulia together with the possibility of using its structure as a tourist accommodation.

However, the Eurocodes focus on onshore structures and this has to some extent resulted in important offshore experience being excluded. The analysis was based on the extreme environmental conditions of the site where it has been suggested to install the system. A numerical model has been implemented and nonlinear dynamic analysis have been performed, investigating both the wind-structure and dnc wave-structure interaction.

Updated env standard Historically, operators used the former Norwegian concrete standards for offshore structures. The standard has been developed on the basis of the experience DNV GL has oa over the years through its involvement in many offshore grouting projects.

DNV GL on offshore concrete structures | Energy Global

Therefore, the main purpose of the paper is not to evaluate the wind turbine fluid dynamic response, but to study od interaction between civil architecture and mechanical ps.

Concrete advantages In the polar extremes, concrete structures are durable and robust to resist collisions with icebergs and are resistant to abrasion from floating ice.


A review of the offshore grouting procedure and quality control documentation is undertaken and forms the basis for the full-scale mock-up test performed to replicate the intended offshore application. Concrete technology has quite literally c5022 the backbone of the oil and gas industry for nearly 40 years, with concrete offshore structures enabling production in the most demanding operating environments.

First of all, the 2 tourist-receptive structures Hotel and bar-restaurant around the wind tower have been designed and checked. Fixed concrete structures can provide continuous production and fewer shutdowns as they can withstand harsher weather.

Unlike steel structures, rnv structures are built locally and therefore also promote the local economy. Historically, operators used the former Norwegian concrete standards for offshore structures.

In the polar extremes, concrete structures are durable and robust to resist collisions with icebergs and are resistant to abrasion from floating ice.

No other standard currently available to the industry covers the whole lifecycle of a concrete offshore structure and provides detailed design guidance. This is now changing with the renewed interest in robust concrete structures for the Arctic environment and for liquefied natural gas LNG storage.

In this way, an economical contribution to the sustainability of the wind farm is possible. For full functionality of this site it is necessary to enable JavaScript. This is believed to be due to the concrete degradation caused by cyclic varying pore water pressure and the pumping effect of water ingressing and exiting opening and closing cracks.

They can also support heavy topsides and be designed to store oil.